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Q. What is Bipolar Encoding?
- Uses three voltage levels negative, positive and zero
- Zero level represents binary 0; 1s are represented with alternating positive and negative voltages even when not consecutive
- Alternate mark inversion (AMI)
A modified NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; inverting bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make the
Q. Describe about Cryptography? - Some media cannot be protected from unauthorized reception (or interception) - Encryption involves transforming the original information in
Can you explain routing loop issue in RIP protocol?
A hypertext link is a special tag that links single page to another page or resource. If you click the link, the browser goes to the link's destination.
wan notes
Torus: The mesh network with wrap around connections is termed as Tours Network. Figure: Torus network
What is a Associative Memory
Q. Define the Network Security? The Internet and Web technology presents enormous promise for e-commerce. Web now is used to handle important business assets that became the
TCP Connections TCP is an end to end point to point transport used in internet. being a point to point protocols means that there is always s single sender a single
Connecting Devices of bridges - Five kinds: - Repeaters - Hubs - Bridges - Two- and three-layer switches - Repeaters and hubs - layer one of Internet model -
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